import os
class lei():
    def __init__(self):
        print("初始函数")
    def echo(self,name,day,test):
        print("传入的第一个参数是:", name)
        print("传入的第二个参数是:", day)
        print("传入的第三个参数是:", test)
c = lei()
c.echo("刘某", "学习第一天", "测试语句")